Introduction to Percent
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The document discusses converting between percentages, fractions, and decimals. It provides examples of writing 30% as the fraction 30/100 or 3/10, converting 25% to the decimal 0.25, and changing the decimal 1.25 to the percentage 125%. Percentages express a number out of 100, and moving the decimal point allows converting between percentage and decimal notations.
Introduction to Percent
- 1. 07 08 09 10 11 12 02 03 04 05 06 17 18 19 20 21 22 13 14 15 16 percent 01
- 2. 07 08 09 10 11 12 02 03 04 05 17 18 19 20 21 22 13 14 15 16 Comes from the Latin word per centum which means per hundred. It is written using the symbol %. percent 06 01
- 3. example: 25 % is read as 25 percent. It means 25 for every one hundred. It can also be written in fraction and in decimal.
- 4. 07 08 09 10 11 12 02 03 04 05 17 18 19 20 21 22 13 14 15 16 Percent to fraction 06 01
- 5. Percent to fraction 30% is 30 per hundred So you write, 30 over 100. Or 30/100 Then simplify, 3/10.
- 6. Percent to fraction 25% is 25 per hundred So you write, 25 over 100. Or 25/100 Then simplify, 1/4.
- 7. Percent to fraction 120% is 120 per hundred So you write, 120 over 100. Or 120/100 Then simplify, 1 1/5.
- 8. 07 08 09 10 11 12 02 03 04 05 17 18 19 20 21 22 13 14 15 16 Percent to decimal 06 01
- 9. Percent to decimal 25% Eliminate the percent sign - 25 Then move the decimal point two times to the left. 0.25
- 10. Percent to decimal 125% Eliminate the percent sign - 125 Then move the decimal point two times to the left. 1.25
- 11. 07 08 09 10 11 12 02 03 04 05 17 18 19 20 21 22 13 14 15 16 Decimal to percent 06 01
- 12. Decimal to percent 0.12 Move the decimal point two times going to the right. - 12 Then add a percent sign. - 12%
- 13. Decimal to percent 0.07 Move the decimal point two times going to the right. - 7 Then add a percent sign. - 7%
- 14. Decimal to percent 1.25 Move the decimal point two times going to the right. - 125 Then add a percent sign. - 125%